baber/WOPTO huggingface dataset:
Patent GB-1416486-A (GB)
Title: Cable transfer apparatus
IPC: B65H77/00
Filed: 1973-05-25
Abstract: 1416486 Taking up slack in flexible elements; reels FATHOM OCEANOLOGY Ltd 25 May 1973 [5 June 1972] 25053/73 Headings B8B and B8M Apparatus for transferring cable 110 between a driven rotatable drum 112 and an undriven static drum 116 each mounted on a static shaft 102, comprises a transfer sheave 114 rotatably mounted at the end of an arm 122 and lying in a plane spaced from but parallel to the axis of the drums 112, 116, and over which cable 110 passs in movement between the two drums, the arrangement being such that cable is transferred from the static drum 116 to the rotatable drum 112 when the latter is rotated in direction A, and from the rotatable to the static drum when rotated in direction B. The arm 122 is rotatably mounted on the shaft 102, and through arm 127 and adjustable friction pads 130, grips with a slipping action, a disc 120 rotatably mounted on the shaft 102. A one way clutch 126 between the disc 120 and drum 112 operates such that the disc and drum are locked together when the drum 112 rotates in direction B and one relatively free when the drum 112 rotates in direction A. A one way clutch 128 between the disc 120 and the shaft 102 operates such that the disc and shaft are locked together to prevent rotation of the disc when the drum 112 is driven in direction A but permits rotation of the disc when the drum 112 is driven in direction B. With rotation of the drum 112 in direction B, the sheave arm 122 tends to be rotated at the same speed, but due to tension in the cable being wound on the drum 116, the arm 122 in fact rotates at only about half the speed of drum 112, as facilitated by the slipping pads 130. With rotation of the drum 112 in direction A, the sheave arm 122 tends to remain static with the shaft 102, but due to tension of cable winding on to the drum 112, the arm 122 rotates against the slipping pads 130, but at a speed slower than that of drum 112. The transferring apparatus is installed inside a cable winch 100 (Fig. 5) for supplying power from a fixed terminal 118 to a junction box 108 on the drum of winch 100, the cable 106 on the drum 100 being connected to the junction box 108. In another embodiment, Figs. 2 and 4 (not shown) the clutches and disc are replaced by pawl and ratchet mechanisms associated with a bearing sleeve on which the sheave arm is mounted for slipping engagement.
Patent GB-1309678-A (GB)
Title: Quantitative determination of the elements and or isotopes contained  in the individual chemical compounds of a mixture of substances
IPC: G01N30/46
Filed: 1970-05-26
Abstract: 1309678 Quantitative gas chromatography BALZERS PATENT-UND BETEILIGUNGS AG 26 May 1970 [18 June 1969] 25123/70 Heading B1X In the quantitative determination of elements and/or isotopes contained in individual compounds of a mixture of substances the mixture is first separated into the individual compounds by a first gas-chromatography column. The compounds are then subjected to a chemical reaction e.g. combustion with a catalyst e.g. Pt, Pd, CuO, PbO 2  CO 3 O 4  or a hot copper capillary oxidised inside, and the reaction products then passed directly by the carrier gas, e.g. N 2 , without mixing to a second gas chromatography column acting as a storage column to build up the concentrations of the reaction products. When the initial mixture has been completely separated the temperature of the storage column is raised e.g. by electric resistance, direct heating or by a movable heater, and the reaction products eluted with a slower flow of optionally different carrier gas and then passed to a selectively responsive detector e.g. a mass spectrometer or a thermionic detector. The first column may be packed with a liquid methyl polysiloxane on kieselguhr or a silicone rubber preparation on Kieselguhr made hydrophobic by treatment with di-methyl-dichloro-silane. The accumulator column may be packed with kieselguhr, aluminium oxide or sodium-aluminium silicate. The mixtures to be analysed may contain <SP>14</SP>C marked methyl esters of the C 10-18  fatty acids, tri-methylsilised products from photosynthesis marked by <SP>14</SP>C from a chloroplast preparation, or n-hexane/ acetone extracts from vegetable material to be investigated for insecticides.
Patent GB-772440-A (GB)
Title: A tanning process
IPC: C14C3/20
Filed: 1953-09-11
Abstract: Condensation products useful as tanning agents are prepared by condensing dicyandiamide in the presence of a sulphite with a carbonyl compound or a carbonyl compound generator.  The ratio of dicyandiamide to the carbonyl compound should be between 1 to 3 and 1 to 7 and 0.1 to 2 mols, and preferably 0.2 to 0.8 mols. of sulphite should be used per mol. dicyandiamide.  The condensation is conducted in neutral or weakly alkaline solution, e.g. in the presence of borax.  Instead of sulphite sulphur dioxide may be passed into the reaction mixture.  The products can be obtained in powder form by vacuum evaporation or spray drying.  Specified carbonyl compounds are formaldehyde and formaldehyde generators, acetaldehyde, crotonaldehyde, benzaldehyde, acetone, acetophenone and cyclohexanone.  Several examples are given of the preparation of resins using formaldehyde and sodium bisulphite or ammonium sulphite. Reference has been directed by the Comptroller to Specification 595,366, [Group IV].
Patent GB-207912-A (GB)
Title: Improvements in curtain rolls
IPC: E06B9/60
Filed: 1922-09-19
Abstract: 207,912. Thompson, W. P., (Heintz, E. E.). Sept. 19, 1922. Roller-blinds, spring; rollers for; pawl and catch arrangements for.-A tubular barrel a, in which is fitted a pawl-carrying casing j having a long sleeve surrounding and forming a bearing for the fixed spindle e, is made of seamed tube, the folds of the seam serving as a key to prevent rotation of the tube independently of the pawl casing and the felt washers i, z, t. The spring r is arranged to coil itself tightly upon the sleeve of the pawl-carrier and upon the rod e. A fabric sleeve is fitted over the rod e to deaden sounds due to vibration of the spring against the rod. The pawl-carrier has one pawl only which slides in guides and engages a notch in the rod e. The ends of the barrel are closed by metal plates slotted to receive lugs x on the barrel which are then turned over. A flat g is formed on one end of the rod e and a bracket is pressed on to the shaped end.
Patent GB-1197114-A (GB)
Title: Improvements in or relating to Vehicle Skid Control Systems
IPC: B60T8/42
Filed: 1968-05-27
Abstract: 1,197,114. Anti-skid braking systems. KELSEY-HAYES CO. 27 May, 1968 [1 June, 1967]; No. 25278/68. Heading F2F. An anti-skid system comprises a brake fluid pressure modulating valve 24 which controls the pressure applied to the brake on detection of a skid to first reduce the pressure to a level at which skid no longer occurs, to then increase the pressure rapidly to an intermediate level and then gradually towards the original braking pressure. For controlling the braking of the rear wheels 10 of an automotive vehicle (or an aircraft) provided with hydraulically actuated drum brakes 12, the master cylinder 20 is connected to the brake cylinders via valve 24 energized by the output of a deceleration sensor 26, 28, 30 which produces an output when the sensed deceleration attains a preset magnitude. Valve 24 comprises a housing 40 divided into chambers 54, 50 by a diaphragm assembly 42, both sides of which are normally connected to a vacuum supply, the chamber 54 directly via vacuum inlet 52 and chamber 50 via connector 56, cavity 144, a normally open valve arrangement, passageway 176 and throttle valve 200. Mounted in the housing is a solenoid 230 connected to the sensor circuit 26 to be energized when a skid occurs to move its plunger 228 towards the left (as shown), resulting in movement of the diaphragm assembly to the left-hand side and the opening of throttle valve 200 to allow unrestricted connection between atmosphere and chamber 50. A piston 46 is biased against the centre of the diaphragm assembly to move therewith when the solenoid is energized. The piston is slidable in a cylinder 62 connected at 16 to the brake cylinders and connected via bore 92 to a second cylinder 60 housing a check valve 76 and. bleed valve 100 and connected at 18 to the master cylinder. Piston 46 is normally biased to maintain valves 76 and 100 open, and when the solenoid is energized is moved to the left to close both valves thereby disconnecting the master cylinder from the brake cylinders and increasing the volume of cylinder 62 occupied by the brake fluid. Upon de-energization of the solenoid, chamber 50 is immediately connected to vacuum, throttle valve 200 is not initially closed so that unrestricted evacuation of chamber 50 can take place with rapid increase of brake pressure caused by rapid movement of piston 46 back into cylinder 62. At the intermediate point the throttle valve 200 is closed to restrict the continued evacuation of chamber 50 and thereby reduce the rate at which braking pressure is reapplied. At the end of the return travel of piston 46 it first opens the bleed valve and subsequently the check valve so that the master cylinder pressure is gradually applied to the brake cylinders.
Patent GB-387414-A (GB)
Title: Improved manufacture of artificial leather
Filed: 1931-09-09
Abstract: 387,414. Artificial leather. GARTNER, E., 18, Auguste- Viktoria Allee, Reinickendorf, and RUCH, M., 7, Ansbacherstrasse, both in Berlin. Sept. 9, 1931, No. 25336. Convention date, Sept. 16, 1930. [Class 140.] Artificial leather is made by impregnating a fleece formed of fibres lying substantially in one direction or a number of superposed fleeces the fibres of which cross each other with rubber latex and then passing the material between pressure rollers. It is then dried and, if desired, vulcanized. The fibres are preferably spun fibres of artificial silk. To increase the extensibility of the material, the fibres may be corrugated, for instance by passage between grooved rolls. The Specification as open to inspection under Sect. 91 refers also to the use of-other binding agents, for example, cellulose derivatives. This subject-matter does not appear in the Specification as accepted.
Patent GB-639063-A (GB)
Title: Improvements in or connected with air filters for carburettors
IPC: F02M35/04
Filed: 1947-09-17
Abstract: 639,063. Carburetter air filters. DIXON, L. H. Sept. 17, 1947, No. 25378. [Class 7 (iii)] An air filter for a carburetter, particularly of the downdraught type as used on Ford engines, in which the air intake is in the top wall of the carburetter with a pilot air jet adjusting screw on the float chamber side of the air intake and a domed cover over the air intake secured to the carburetter by a screw engaging in a tapped hole on the opposite side of the air intake to the pilot air jet adjusting screw, comprises a perforated or apertured box or container 1 containing an air filtering medium 10 and/or device, a tubular outlet 2 adapted to connect with the air intake, a hole 3 for the pilot air adjusting screw 15, and a hole 4 in the box or container or a part attached thereto for receiving a screw 16 which engages in the tapped hole for the domed cover, the holes and outlet being so arranged that the air filter can be connected to the carburetter in place of the domed cover without the necessity of drilling or tapping holes in the carburetter or engine or requiring any alteration to the jets or choke of the carburetter. In a modification the screw 16 is replaced by a rod which extends through the box or container and has a screwed end for engagement in the tapped hole provided for the screw 16. The pilot air adjusting screw is replaced by a similar rod. Fig. 5 shows a cross-section of the casing. In the modification the cross-section is symmetrical with respect to a vertical centre line both sides being similar to the right hand side of Fig. 5. Perforations in the sides of the box are replaced, by louvres. A tube 9 of very fine gauze is included in the filter. The whole arrangement can easily and quickly be fitted to a carburetter in place of a domed cover over the air intake. One or other of the top and bottom walls of the casing may be detachable.
Patent GB-1347705-A (GB)
Title: Hydraulic system for supporting a harvester platform
IPC: A01D41/14
Filed: 1971-04-19
Abstract: 1347705 Hydraulic lifting apparatus INTERNATIONAL HARVESTER CO 19 April 1971 [30 March 1970] 25514/71 Heading F1P [Also in Division A1] A hydraulic system for a harvester platform operates two hydraulic rams 24 which serve to raise, lower, and maintain the elevation of the platform 12 when the harvester is travelling over ground contours or is stationary. The hydraulic system consists of a fluid reservoir 26, connected to the rams 24 by means of a pump 28 and a 3 position, 4 way manually operated spring centred control valve. This valve serves to direct fluid from pump 28 into a direct circuit to the rams (circuit 34), to allow fluid to flow from the rams 24 along 34 into the reservoir 26, or to allow fluid from the pump 28 into circuit 36 which operates to keep the ram pressure at a level predetermined by a pressure relief valve 42. Circuit 36 consists of two branches, one connected to the rams 24 via a check valve 38, the other branch 40 being joined to reservoir 26 via the valve 42 which is sensitized by means of circuit 42 and opens when valve 38 closes. An accumulator 46 ensures a constant fluid pressure against rams 24. The valve 30 serves to divert excess fluid pressure from pump 28 into the reservoir 26.
Patent GB-353296-A (GB)
IPC: G01C19/38
Filed: 1930-08-27
Abstract: 353,296. Gyroscopic compasses. SPERRY GYROSCOPE CO., Inc., Manhattan Bridge Plaza, Brooklyn, New York, U.S.A.-(Assignees of Harris, P. E. ; 2055, Ocean Avenue, Brooklyn, New York, U.S.A.) Aug. 27, 1930, No. 25545. Convention date, Aug. 29, 1929. [Class 97 (iii).] To reduce intercardinal rolling errors in liquidcontrolled gyroscopic compasses having a number of liquid containers on the N. side of the gyroscopic element and spaced in the E.-W. direction and a number of liquid containers similarly spaced on the S. side, liquid-conducting means interconnect the containers in both the E.-W. and N.-S. directions. In the form shown in Fig. 2 the containers 6, 7 on the N. side are diagonally connected to the containers 7<1>, 6<1> respectively on the S. side. In the form shown in Fig. 3, the pipe 11 connecting the containers 16, 17 on the N. side is connected by the pipe 13 to the pipe 12 connecting the containers 16<1>, 17<1> on the S. side.
Patent GB-1275105-A (GB)
Title: Pulse generator
IPC: H03K3/30
Filed: 1969-05-20
Abstract: 1275105 Pulse generating circuits IWASAKI TSUSHINKI KK 20 May 1969 [21 May 1968 (4)] 25581/69 Heading H3T A pulse generator comprises a pulse source   (e.g. TRI, TR2) a wave shaping and current limiting circuit (e.g. R7, R9, C4, R8), a normally conducting shunt diode D2 of the step recovery type, a series output coupling diode D3 and a protective diode D4. When a pulse from a blocking oscillator TR1 renders TR2 conducting a negative pulse is applied to the step recovery diode to cut-off its current supply, blaze storage maintains it conducting during the relatively slow leading edge of the pulse but at the end of the charge storage period a sharp negative rise occurs and this is applied through a thresholding diode D3 to the output line 2. D4 prevents an excessive rise in voltage across the step recovery diode if the load is open circuited. A strip line 3 may be provided to remove frequency components causing overshoot and sag. Similar circuits are described which omit the line and protective diode and provide positive output pulses.
Patent GB-188154-A (GB)
Title: Improvements in or relating to resilient wheels
IPC: B60B9/06
Filed: 1921-09-27
Abstract: 188,154. Hamelin, J., and Picard, J. Sept. 27, 1921. Spring wheels.-Relates to spring wheels in which the springs are housed between overlapping annular channel members, and consists in forming the inner channel member by suitably shaping the edge of a disc 3 and attaching thereto a correspondingly shaped annular member 7. The outer channel member may be formed by two annular members 12 which when bolted together also form the tyre carrying rim. The springs are arranged in sets of three, the outer springs 18 of each set being arranged tangentially and the central spring 18a radially.
Patent GB-212846-A (GB)
IPC: B07C5/06
Filed: 1923-10-15
Abstract: 212,846. General Electric Co., Ltd., (Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen). June 22, 1923, [Convention date]. Separating and sorting device for mechanically sorting tubes, such as glass tubes for use in the manufacture of incandescent lamps, first grades the tubes according to their external diameter by passing them over slots cf different widths and subsequently grades those of any required diameter according to their internal diameter by means of a rotating spider with conical spokes on to which the tubes drop and from which they are, discharged into corresponding bins. The tubes are fed from a hopper a by a rotary device c down a. shoot. d to a space z<1> between a rotating drum f and a fixed shelf e spaced the required amount therefrom. The oversized tubes are carried on by projections q and the grading repeated at the successively increasing spaces z<2>, Z<3>. The second part of the process consists in leading the tubes passing through a given slot z<2> to a shoot i from which they pass on to conical spokes l carried by a rotating disc k which is formed with a rim n with apertures m registering with the spokes. The medium size tubes pass on to the spokes for about half their length and are carried round until sliding blocks o, normally held back by a fixed disc p with a segmental flange, t, are allowed to fall and strip them off the. spokes into a tin IV. The oversized tubes pass completely on to the spokes and are held by spring arms q controlled by a cam r to allow the tubes to pass into a bin V. The undersized tubes are held on the tips of the spokes and fall off when the horizontal position is passed into the bin VI. Specification 150,018 is referred to.
Patent GB-337510-A (GB)
Title: Improvements in trawling gear
IPC: A01K73/045
Filed: 1929-08-24
Abstract: 337,510. Stanley, N. Aug. 24, 1928. Trawling-gear.-A metal shoe for a danleno comprises a foursided socket with a heavy rounded bottom. The shoe is attached to the danleno by two bolts 5, 5 at right-angles to each other. Slots 4 in two opposite faces allow of the oscillation of the danleno on the attaching ropes. The shoe is preferably formed as a casting of square cross-section.
Patent GB-822233-A (GB)
Title: Improvements in pit props
IPC: E21D15/52
Filed: 1955-09-09
Abstract: 822,233. Mine roof supports. RHEINSTAHL WANHEIM G.m.b.H., [formerly EISENWERK WANHEIM G.m.b.H.]. Sept. 9, 1955 [Sept. 10, 1954], No. 25874/55. Class 20(2) The head of a pit prop 1 has two hydraulic cylinders 5 on opposite sides of the head adapted to m o v e girders 3 against the roof independently of one another. The cylinders 5 are pivoted on straps 7 which may or may not be connected to the prop and one formed with noses 6<SP>1</SP> adapted to be forced against the prop to support the cylinders or the cylinders may be mounted on a removable lead plate. To equalize their pressures the cylinders are connected by a conduit which may be closed and one of the cylinders relieved of pressure for advancing its girder or for relieving excessive pressure on the girder which may be done automatically. The pit prop is hydraulic and carries a girder 2.
Patent GB-224240-A (GB)
Title: Improvements in or relating to photographic apparatus.
IPC: G03B17/12
Filed: 1924-10-30
Abstract: 224,240. Schubert, E. von. Oct. 30, 1923, [Convention date]. Studio accessories.-For taking photographs of objects lying outside the direct field of view of the camera, a compound reflector system is employed in front of the camera comprising an adjustable mirror or mirrors for illuminating the object, and a mirror so connected to the illuminating system that it reflects an image of the illuminated object into the camera. In the form shown, an object s is illuminated by light from a source h through the medium of reflectors i, i<1> k, k<1>, r, r<1>, each pair of which is adjustable about an horizontal axis on a carriage w displaceable along rails b which also support the camera, u. A mirror x is carried on the spindle of the pair r, r<1>, in a plane at right angles to the plane of these mirrors, and serves in all positions of the carriage, and after the illuminating mirrors have been adjusted, to reflect an image of the object s into the camera u. The illuminating mirrors may be employed to throw a non-actinic or coloured light upon the object. The Specification as open to inspection under Sect. 91 (3) (a) also comprises the use of concentrated daylight or flach-light as the source of illumination. This subject-matter does not appear in the Specification as accepted.
Patent GB-1182759-A (GB)
Title: Improvements in or relating to the production of Mixtures of Cycloserine and O-Carbamyl-D-Serine
IPC: A23K20/195
Filed: 1968-05-30
Abstract: 1,182,759. Cycloserine and O-carbamyl D- serine mixtures. COMMERCIAL SOLVENTS CORP. 30 May, 1968 [21 June, 1967; 16 April, 1968], No. 25892/68. Heading A5B. [Also in Division C2] A crude mixture of cycloserine and O-carbamyl D-serine for use as an animal feed supplement is prepared by the following steps:- (a) cultivating a cycloserine producing strain of streptomyces, e.g. Streptomyces, orchidaceous NRRL 2454, S. virginiae or S. lavendulae, as disclosed in specification 929,043, in a nutrient fermentation medium to produce a beer containing solid cycloserine and O-carbamyl- D-serine, (b) adding to said beer a zinc compound having a nutritionally-acceptable anion in a mole ratio of from 0.5-2 of said zinc compound to I of cycloserine, (c) adjusting the pH of said beer to from 6.0 to 9.5 with calcium hydroxide, calcium oxide or calcium carbonate, (d) concentrating said beer at a temperature of up to 60 ‹C., at a pressure below atmospheric pressure to effect a reduction in volume of said beer to from 1.0% to 25% of the initial volume to produce a concentrated beer, and (e) recovering solids by spray or drum drying. The fermentation beer may be whole or filtered. In the case of the clarified beer, it is preferred to concentrate to 1.5 - 3.5% by volume, and a C 1 -C 3  alcohol or mixture thereof e.g. methanol and isopropanol (1:1), in a quantity of 1 to 2 times that of the concentrate, and cooling to 0-10‹C., in order to precipitate the mixed crude-antibiotics. The zinc compound is zinc oxide, zinc acetate, zinc propionate, zinc tartrate, zinc sulphate, zinc chloride or zinc nitrate. Specifications 768,007 and 775,946 are also referred to.
Patent GB-1217077-A (GB)
Title: Improvements in mobile drill rigs
Inventor: GUSTAFSSON SVEN HERBERT
IPC: E21B15/04
Filed: 1968-05-30
Abstract: 1,217,077. Percussive drills. ATLAS COPCO A.B. 30 May, 1968, No. 26007/68. Heading B4C. A mobile percussive rock drill rig comprises a pair of tracked frames 10 connected by a chassis 12, 13, 14, supporting a pivot shaft 18, a foldable boom 24, 26 pivotally mounted on a head member 19 journalled on the shaft, a second head member 30 carried by the boom and supporting a rock drill feed shell 42, the feed shell being swingable in planes substantially perpendicular to a central plane passing through the boom structure and each head member being swingable 180 degrees or more about their respective pivot shafts by means of fluid pressure actuated rams 20, 34. The boom portions 24, 26 are actuated by means of rams 21, 28 and the feed shell 42 may be pivoted about a shaft (38, Fig. 2) on the member 30 by means of ram (48) and links 45, 47.